docs: def south_field_triple(self):
          "Returns a suitable description of this field for South."
          args, kwargs = introspector(self)
          kwargs.update({
              'populate_from': 'None' if callable(self.populate_from) else repr(self.populate_from),
              'unique_with': repr(self.unique_with)
          })
          return ('autoslug.fields.AutoSlugField', args, kwargs)